569 lines
15 KiB
C++
569 lines
15 KiB
C++
/***********************************************************************
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* mouse.cpp - A small mouse-controlled drawing program *
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2017-2018 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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* as published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* The Final Cut is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this program. If not, see *
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* <http://www.gnu.org/licenses/>. *
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***********************************************************************/
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#include <final/final.h>
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//----------------------------------------------------------------------
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// class ColorChooser
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//----------------------------------------------------------------------
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#pragma pack(push)
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#pragma pack(1)
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class ColorChooser : public finalcut::FWidget
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{
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public:
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// Constructor
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explicit ColorChooser (finalcut::FWidget* = nullptr);
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// Disable copy constructor
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ColorChooser (const ColorChooser&) = delete;
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// Destructor
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~ColorChooser();
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// Disable assignment operator (=)
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ColorChooser& operator = (const ColorChooser&) = delete;
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// Accessors
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FColor getForeground();
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FColor getBackground();
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private:
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// Method
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virtual void draw() override;
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// Event handler
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virtual void onMouseDown (finalcut::FMouseEvent*) override;
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// Data Members
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FColor fg_color{finalcut::fc::White};
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FColor bg_color{finalcut::fc::Black};
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finalcut::FLabel headline{this};
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};
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#pragma pack(pop)
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//----------------------------------------------------------------------
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ColorChooser::ColorChooser (finalcut::FWidget* parent)
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: FWidget(parent)
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{
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setSize (8, 12);
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setFixedSize (8, 12);
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unsetFocusable();
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if ( parent )
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{
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FColor fg = parent->getForegroundColor();
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FColor bg = parent->getBackgroundColor();
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setForegroundColor(fg);
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setBackgroundColor(bg);
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headline.setForegroundColor(fg);
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headline.setBackgroundColor(bg);
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}
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// Text label
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headline.setGeometry (1, 1, 8, 1);
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headline.setEmphasis();
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headline.setAlignment (finalcut::fc::alignCenter);
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headline << "Color";
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}
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//----------------------------------------------------------------------
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ColorChooser::~ColorChooser()
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{ }
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//----------------------------------------------------------------------
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void ColorChooser::onMouseDown (finalcut::FMouseEvent* ev)
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{
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int mouse_x = ev->getX();
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int mouse_y = ev->getY();
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if ( ev->getButton() == finalcut::fc::MiddleButton )
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return;
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for (int c = 0; c < 16; c++)
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{
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int xmin = 2 + (c / 8) * 3;
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int xmax = 4 + (c / 8) * 3;
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int y = 3 + c % 8;
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if ( mouse_x >= xmin && mouse_x <= xmax && mouse_y == y )
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{
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if ( ev->getButton() == finalcut::fc::LeftButton )
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bg_color = FColor(c);
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else if ( ev->getButton() == finalcut::fc::RightButton )
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fg_color = FColor(c);
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redraw();
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emitCallback("clicked");
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}
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}
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}
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//----------------------------------------------------------------------
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void ColorChooser::draw()
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{
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setColor();
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finalcut::FWidget::drawBorder (1, 2, 8, 11);
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for (FColor c = 0; c < 16; c++)
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{
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setPrintPos (2 + (c / 8) * 3, 3 + c % 8);
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if ( c < 6 )
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setColor (finalcut::fc::LightGray, c);
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else if ( c > 8 )
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setColor (finalcut::fc::DarkGray, c);
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else
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setColor (finalcut::fc::White, c);
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if ( c == bg_color )
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{
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print (' ');
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print (finalcut::fc::Times);
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print (' ');
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}
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else
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print (" ");
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}
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}
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//----------------------------------------------------------------------
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inline FColor ColorChooser::getForeground()
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{
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return fg_color;
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}
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//----------------------------------------------------------------------
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inline FColor ColorChooser::getBackground()
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{
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return bg_color;
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}
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//----------------------------------------------------------------------
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// class Brushes
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//----------------------------------------------------------------------
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#pragma pack(push)
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#pragma pack(1)
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class Brushes : public finalcut::FWidget
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{
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public:
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// Constructor
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explicit Brushes (finalcut::FWidget* = nullptr);
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// Disable copy constructor
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Brushes (const Brushes&) = delete;
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// Destructor
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~Brushes();
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// Disable assignment operator (=)
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Brushes& operator = (const Brushes&) = delete;
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// Accessor
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wchar_t getBrush();
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// Mutators
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void setForeground (FColor);
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void setBackground (FColor);
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private:
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// Method
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virtual void draw() override;
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// Event handler
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virtual void onMouseDown (finalcut::FMouseEvent*) override;
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// Data Members
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wchar_t brush{L' '};
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FColor fg_color{finalcut::fc::White};
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FColor bg_color{finalcut::fc::Black};
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finalcut::FLabel headline{this};
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};
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#pragma pack(pop)
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//----------------------------------------------------------------------
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Brushes::Brushes (finalcut::FWidget* parent)
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: FWidget(parent)
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{
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setSize (8, 4);
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setFixedSize (8, 4);
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unsetFocusable();
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if ( parent )
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{
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FColor fg = parent->getForegroundColor();
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FColor bg = parent->getBackgroundColor();
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setForegroundColor(fg);
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setBackgroundColor(bg);
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headline.setForegroundColor(fg);
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headline.setBackgroundColor(bg);
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}
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// Text label
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headline.setGeometry(1, 1, 8, 1);
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headline.setEmphasis();
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headline.setAlignment (finalcut::fc::alignCenter);
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headline << "Brush";
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}
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//----------------------------------------------------------------------
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Brushes::~Brushes()
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{ }
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//----------------------------------------------------------------------
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void Brushes::draw()
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{
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int pos;
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setColor();
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finalcut::FWidget::drawBorder (1, 2, 8, 4);
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setColor (fg_color, bg_color);
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setPrintPos (2, 3);
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print(" ");
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print(finalcut::FString(3, finalcut::fc::MediumShade));
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if ( brush == L' ' )
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pos = 0;
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else
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pos = 3;
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setColor();
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setPrintPos (3 + pos, 2);
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print(finalcut::fc::BlackDownPointingTriangle);
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setPrintPos (3 + pos, 4);
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print(finalcut::fc::BlackUpPointingTriangle);
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}
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//----------------------------------------------------------------------
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void Brushes::onMouseDown (finalcut::FMouseEvent* ev)
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{
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int mouse_x = ev->getX();
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int mouse_y = ev->getY();
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if ( ev->getButton() != finalcut::fc::LeftButton )
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return;
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if ( mouse_x >= 2 && mouse_x <= 4 && mouse_y == 3 )
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{
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brush = L' ';
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redraw();
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}
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else if ( mouse_x >= 5 && mouse_x <= 7 && mouse_y == 3 )
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{
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brush = finalcut::fc::MediumShade;
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redraw();
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}
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}
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//----------------------------------------------------------------------
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inline wchar_t Brushes::getBrush()
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{
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return brush;
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}
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//----------------------------------------------------------------------
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inline void Brushes::setForeground (FColor color)
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{
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fg_color = color;
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}
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//----------------------------------------------------------------------
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inline void Brushes::setBackground (FColor color)
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{
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bg_color = color;
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}
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//----------------------------------------------------------------------
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// class MouseDraw
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//----------------------------------------------------------------------
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#pragma pack(push)
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#pragma pack(1)
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class MouseDraw : public finalcut::FDialog
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{
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public:
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// Using-declaration
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using FWidget::setGeometry;
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// Constructor
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explicit MouseDraw (finalcut::FWidget* = nullptr);
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// Disable copy constructor
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MouseDraw (const MouseDraw&) = delete;
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// Destructor
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~MouseDraw();
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// Disable assignment operator (=)
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MouseDraw& operator = (const MouseDraw&) = delete;
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// Methods
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void setGeometry (int, int, std::size_t, std::size_t, bool = true);
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// Event handlers
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virtual void onAccel (finalcut::FAccelEvent*) override;
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virtual void onClose (finalcut::FCloseEvent*) override;
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private:
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// Methods
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virtual void draw() override;
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void drawBrush (int, int, bool = false);
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void drawCanvas();
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virtual void adjustSize() override;
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// Event handler
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virtual void onMouseDown (finalcut::FMouseEvent*) override;
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virtual void onMouseMove (finalcut::FMouseEvent*) override;
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// Callback methods
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void cb_colorChanged (finalcut::FWidget*, FDataPtr);
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// Data Members
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term_area* canvas{nullptr};
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ColorChooser c_chooser{this};
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Brushes brush{this};
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};
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#pragma pack(pop)
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//----------------------------------------------------------------------
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MouseDraw::MouseDraw (finalcut::FWidget* parent)
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: finalcut::FDialog(parent)
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{
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setText ("Drawing with the mouse");
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c_chooser.setPos (1, 1);
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c_chooser.addCallback
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(
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"clicked",
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F_METHOD_CALLBACK (this, &MouseDraw::cb_colorChanged)
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);
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brush.setPos (1, 12);
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finalcut::FPoint no_shadow(0, 0);
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finalcut::FRect scroll_geometry(0, 0, 1, 1);
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createArea (scroll_geometry, no_shadow, canvas);
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}
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//----------------------------------------------------------------------
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MouseDraw::~MouseDraw()
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{ }
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//----------------------------------------------------------------------
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void MouseDraw::setGeometry ( int x, int y
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, std::size_t w, std::size_t h
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, bool adjust )
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{
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int old_w, old_h;
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finalcut::FDialog::setGeometry (x, y, w, h, adjust);
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finalcut::FPoint no_shadow(0, 0);
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finalcut::FRect scroll_geometry (0, 0, w - 11, h - 3);
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old_w = canvas->width;
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old_h = canvas->height;
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resizeArea (scroll_geometry, no_shadow, canvas);
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if ( old_w != canvas->width || old_h != canvas->height )
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{
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setColor(getForegroundColor(), getBackgroundColor());
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clearArea (canvas, ' ');
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}
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}
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//----------------------------------------------------------------------
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void MouseDraw::onAccel (finalcut::FAccelEvent* ev)
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{
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close();
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ev->accept();
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}
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//----------------------------------------------------------------------
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void MouseDraw::onClose (finalcut::FCloseEvent* ev)
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{
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finalcut::FApplication::closeConfirmationDialog (this, ev);
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}
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//----------------------------------------------------------------------
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void MouseDraw::draw()
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{
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int y_max = int(getHeight());
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finalcut::FDialog::draw();
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setColor();
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if ( isNewFont() )
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{
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for (int y = 2; y < y_max; y++)
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{
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setPrintPos (10, y);
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print (finalcut::fc::NF_rev_border_line_right);
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}
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setPrintPos (10, y_max);
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print (finalcut::fc::NF_rev_border_corner_lower_right);
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}
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else
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{
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setPrintPos (10, 2);
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print (finalcut::fc::BoxDrawingsDownAndHorizontal);
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for (int y = 3; y < y_max; y++)
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{
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setPrintPos (10, y);
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print (finalcut::fc::BoxDrawingsVertical);
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}
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setPrintPos (10, y_max);
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print (finalcut::fc::BoxDrawingsUpAndHorizontal);
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}
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drawCanvas();
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}
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//----------------------------------------------------------------------
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void MouseDraw::drawBrush (int x, int y, bool swap_color)
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{
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int Cols = int(getWidth());
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int Lines = int(getHeight());
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if ( x > 10 && x < Cols && y > 2 && y < Lines )
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{
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if ( swap_color )
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setColor (c_chooser.getBackground(), c_chooser.getForeground());
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else
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setColor (c_chooser.getForeground(), c_chooser.getBackground());
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// set canvas print cursor position
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canvas->cursor_x = x - canvas->offset_left - 10;
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canvas->cursor_y = y - canvas->offset_top - 2;
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// print on canvas
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print (canvas, brush.getBrush());
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// copy canvas to the dialog
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drawCanvas();
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}
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}
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//----------------------------------------------------------------------
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void MouseDraw::drawCanvas()
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{
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if ( ! hasPrintArea() )
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finalcut::FVTerm::getPrintArea();
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if ( ! (hasPrintArea() && canvas) )
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return;
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int ax = 9 + getTermX() - print_area->offset_left
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, ay = 1 + getTermY() - print_area->offset_top
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, y_end = canvas->height
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, x_end = canvas->width
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, w_line_len = print_area->width + print_area->right_shadow;
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for (int y = 0; y < y_end; y++) // line loop
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{
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charData* canvaschar; // canvas character
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charData* winchar; // window character
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canvaschar = &canvas->text[y * x_end];
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winchar = &print_area->text[(ay + y) * w_line_len + ax];
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std::memcpy (winchar, canvaschar, sizeof(charData) * unsigned(x_end));
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if ( int(print_area->changes[ay + y].xmin) > ax )
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print_area->changes[ay + y].xmin = uInt(ax);
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if ( int(print_area->changes[ay + y].xmax) < ax + x_end - 1 )
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print_area->changes[ay + y].xmax = uInt(ax + x_end - 1);
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}
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print_area->has_changes = true;
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}
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//----------------------------------------------------------------------
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void MouseDraw::adjustSize()
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{
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std::size_t w = 60, h = 18;
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int x = 1 + int((getParentWidget()->getWidth() - w) / 2);
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int y = 1 + int((getParentWidget()->getHeight() - h) / 2);
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setGeometry (x, y, w, h, false);
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finalcut::FDialog::adjustSize();
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}
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//----------------------------------------------------------------------
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void MouseDraw::onMouseDown (finalcut::FMouseEvent* ev)
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{
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finalcut::FDialog::onMouseDown(ev);
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if ( ev->getButton() != finalcut::fc::LeftButton
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&& ev->getButton() != finalcut::fc::RightButton )
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return;
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drawBrush ( ev->getX()
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, ev->getY()
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, ev->getButton() == finalcut::fc::RightButton );
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}
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//----------------------------------------------------------------------
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void MouseDraw::onMouseMove (finalcut::FMouseEvent* ev)
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{
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FDialog::onMouseMove(ev);
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if ( ev->getButton() != finalcut::fc::LeftButton
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&& ev->getButton() != finalcut::fc::RightButton )
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return;
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drawBrush ( ev->getX()
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, ev->getY()
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, ev->getButton() == finalcut::fc::RightButton);
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}
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//----------------------------------------------------------------------
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void MouseDraw::cb_colorChanged (finalcut::FWidget*, FDataPtr)
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{
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brush.setForeground (c_chooser.getForeground());
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brush.setBackground (c_chooser.getBackground());
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brush.redraw();
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}
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//----------------------------------------------------------------------
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// main part
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//----------------------------------------------------------------------
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int main (int argc, char* argv[])
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{
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// Create the application object
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finalcut::FApplication app(argc, argv);
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// Create a simple dialog box
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MouseDraw mouse_draw(&app);
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mouse_draw.setGeometry (12, 4, 60, 18);
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mouse_draw.addAccelerator('q'); // press 'q' to quit
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// Set dialog object mouse_draw as main widget
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app.setMainWidget(&mouse_draw);
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// Show and start the application
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mouse_draw.show();
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return app.exec();
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}
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